switchmodebuttontag.java

java 写的一个新闻发布系统

package org.jahia.taglibs.button;

import org.jahia.data.JahiaData;
import org.jahia.exceptions.JahiaException;
import org.jahia.registries.ServicesRegistry;
import org.jahia.services.usermanager.*;
import org.jahia.taglibs.util.Utils;
import org.jahia.taglibs.util.constants.JahiaTagsConstants;
import org.jahia.utils.JahiaConsole;

import java.io.*;
import java.util.*;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;


/**
 * Class SwitchModeButtonTag : return the full link ("<a href...>...</a>") allowing to
 *                             switch between edit mode and view mode
 *
 * @author  Jerome Tamiotti
 */
public class SwitchModeButtonTag extends AbstractButtonTag {

	private String viewTitle = "View&nbsp;mode";
	private String editTitle = "Edit&nbsp;mode";
	private String style = "";
    private boolean isEdit = false;

	public void setViewTitle(String vtitle) {
	    
		this.viewTitle = vtitle;
	}

    public void setEditTitle(String etitle) {
		this.editTitle = etitle;
	}

    public void setStyle(String style) {
		this.style = style;
	}
    
    public String getTitle() {
        return isEdit ? viewTitle : editTitle;
    }
    
    public String getStyle() {
        return this.style;
    }
         
    public boolean testRights (JahiaData jData) {		
        try {
            // this button is displayed when the user is logged,
            // or when the guest was set write access on the current page
            JahiaUserManagerService userService = ServicesRegistry.getInstance().getJahiaUserManagerService();
            JahiaUser theUser = userService.lookupUser( jData.page().getJahiaID(), userService.GUEST_USERNAME );
            return jData.gui().isLogged() || jData.page().checkWriteAccess(theUser);
            
        } catch (JahiaException je) {
            JahiaConsole.println("SwitchModeButtonTag : testRights ", je.toString());
            return false;
        }
    }
    
    public String getLauncher(JahiaData jData) throws JahiaException {
        // returns the URL used to switch the mode
        this.isEdit = jData.gui().isEditMode();
        return jData.gui().drawSwitchModeLink();
    }

}